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Cannabis Charges in Illinois

Cannabis Charges in Illinois

Cannabis is legal in Illinois — but many cannabis-related activities remain illegal. Possession over legal limits, unlicensed sales, DUI, and underage use still result in criminal charges. At Stavros Law Offices, we defend clients facing cannabis offenses throughout Lake County, Cook County, and Northern Illinois.

Cannabis Legalization in Illinois

On January 1, 2020, Illinois legalized recreational cannabis for adults 21 and older under the Cannabis Regulation and Tax Act (410 ILCS 705). Adults can legally possess:

  • 30 grams of cannabis flower
  • 5 grams of cannabis concentrate
  • 500 mg of THC in cannabis-infused products

Non-Illinois residents can possess half these amounts.

What's Still Illegal

Despite legalization, these cannabis activities remain criminal:

  • Possession over legal limits
  • Possession by anyone under 21
  • Unlicensed sale or delivery of cannabis
  • Growing cannabis without a license (no home cultivation allowed)
  • Driving under the influence of cannabis
  • Public consumption (smoking, vaping)
  • Possession on federal property
  • Possession on school grounds
  • Transportation of cannabis in certain ways

Cannabis Possession Over Legal Limits

Amount (Flower) Classification Penalty

30–100 grams

Class A Misdemeanor

Up to 364 days, $2,500 fine

100–500 grams

Class 4 Felony

1–3 years, $25,000 fine

500–2,000 grams

Class 3 Felony

2–5 years, $25,000 fine

2,000–5,000 grams

Class 2 Felony

3–7 years, $100,000 fine

Over 5,000 grams

Class 1 Felony

4–15 years, $150,000 fine

Unlicensed Cannabis Sales

Selling cannabis without a license remains illegal regardless of the amount:

Delivery of Cannabis (720 ILCS 550/5)

Amount Class Penalty

2.5–10 grams

Class B Misdemeanor

Up to 6 months

10–30 grams

Class A Misdemeanor

Up to 364 days

30–500 grams

Class 3 Felony

2–5 years

Over 500 grams

Class 2 Felony

3–7 years

Enhanced Penalties

  • Sale to a minor: Significantly enhanced penalties
  • Near schools or parks: Enhanced penalties
  • Using a minor to sell: Separate felony charge

Cannabis DUI

Driving under the influence of cannabis remains illegal under 625 ILCS 5/11-501:

  • Same penalties as alcohol DUI
  • THC blood level of 5 nanograms/mL or higher creates a presumption of impairment
  • Any impairment from cannabis can support a DUI charge

Note: THC stays in the blood longer than alcohol, so you could test positive days after consumption. However, the State must prove actual impairment at the time of driving.

Underage Cannabis Possession

For persons under 21:

  • 10 grams or less: Civil penalty (fine, no criminal record)
  • Over 10 grams: Criminal charges apply
  • School-based possession: Additional disciplinary consequences

Illegal Cultivation

Illinois does not permit home cultivation of cannabis (unlike some other legalization states). Growing cannabis without a license is illegal:

Number of Plants Class Penalty

1–5 plants

Class 4 Felony

1–3 years

5–20 plants

Class 3 Felony

2–5 years

20–50 plants

Class 2 Felony

3–7 years

Over 50 plants

Class 1 Felony

4–15 years

Exception: Medical cannabis patients may grow limited amounts under certain conditions.

Public Consumption

Cannabis consumption is prohibited:

  • In public places
  • In vehicles (driver and passengers)
  • On school grounds
  • Near persons under 21
  • In areas where smoking is prohibited

Public consumption is typically a civil violation (fine) but can be upgraded to criminal charges in certain circumstances.

Defense Strategies

Illegal Search

The "smell of cannabis" used to justify many vehicle searches. Post-legalization, the smell alone may not provide probable cause in all circumstances. We challenge searches aggressively.

Amount Disputes

The weight of cannabis determines the charge severity. We examine how the cannabis was weighed — did police include packaging? Was the weight inflated?

No Intent to Sell

For delivery charges, we challenge whether you intended to sell versus simply sharing with friends (which may be legal within limits).

Medical Use

If you're a registered medical cannabis patient, different rules apply. We examine whether your possession was within medical program guidelines.

Challenging DUI Evidence

THC tests don't prove current impairment. We challenge the State's evidence of actual impairment at the time of driving.

Cannabis Expungement

Illinois has dramatically expanded expungement eligibility for cannabis offenses:

  • Automatic expungement for many minor convictions
  • Petition-based expungement for others
  • Convictions for amounts now legal are eligible

If you have prior cannabis convictions, you may be eligible for expungement under current law.

Frequently Asked Questions

Can I smoke cannabis in my car?

No. Cannabis consumption in a motor vehicle is prohibited, even if parked. Cannabis must be stored in a sealed, odor-proof container while in a vehicle.

Can I be fired for using cannabis?

Yes. Employers can still prohibit cannabis use and test employees, even though recreational use is legal. Many employers maintain zero-tolerance drug policies.

What if I smell like cannabis during a traffic stop?

Post-legalization, courts are reconsidering whether the smell of cannabis alone provides probable cause to search. However, police may still investigate if they suspect impairment.

Can I buy cannabis for a friend who's under 21?

No. Providing cannabis to anyone under 21 is illegal and carries enhanced penalties.

Protect Your Rights — Call Today

Despite legalization, cannabis charges remain common and can have serious consequences. At Stavros Law Offices, we defend cannabis cases and fight to protect your record.

📞 Call (847) 520-4810

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Primarily practicing in the following counties: ​Lake, Cook, McHenry, Kane, Will, DuPage, ​DeKalb, Boone and Kendall Counties

Office Location

433 N. Milwaukee Ave
Wheeling, IL 60090
847-520-4810

Monday - Friday: 9:00 AM- 5:00 PM
Saturday: By Appointment